GMC 2018 Terrain Owner's Manual page 253

252 Vehicle Care
Fuses Usage
F1 Exhaust fuel heater
F2 Liftgate
Fuses Usage
F3 Trailer auxiliary
power
F4 Power seats
F5 Memory seat
module
F6 Sunroof
F7 Side blind zone
alert
F8 Trailer reverse
lamps
F9 Rear heated seat 1
F10 Parking assist
F11 Rear heated seat 2
F12
F13 Trailer
parking lamp
F14 Right trailer turn
signal lamp
F15 Left parking lamp
F16 Right parking lamp
F17
Fuses Usage
F18 Left trailer turn
signal lamp
F19 All-wheel drive
F20 Lumbar
F21 Rear auxiliary
power outlet
F22 Rear drive unit
Relays Usage
K1 Right trailer
stoplamp/Turn
signal lamp
K2 Trailer reverse
lamps
K3 Left trailer
stoplamp/Turn
signal lamp
K4 Park lamps
K5 Selective catalytic
reduction (SCR)
(diesel only)